N=int(input())
list2=[]
for i in range(60):
    list2.append(2**i)

for j in range(1,1000):
    if j==N:
        print(-1)
        exit()
    elif j in list2:
        pass
    elif N-j in list2:
        pass
    else:
        print(j,N-j)
        exit()